COP5725 D ATABASE M ANAGEMENT C ONNECT TO P OSTGRE SQL SEVER VIA PG A DMIN Prof: Dr. Shu-Ching Chen TA: Hsin-Yu Ha

P ROCEDURE OUTLINE Download pgAdmin from Install pgAdmin Connect to PostgreSQL through pgAdmin Start creating your own database.

D OWNLOAD PG A DMIN (1) Click download Go to PgAdmin Website

D OWNLOAD PG A DMIN (2) Select the latest reliable version v1.20.0

D OWNLOAD PG A DMIN (3)

D OWNLOAD PG A DMIN (4) Download pgadmin zip and extract.

I NSTALL PG A DMIN (1) After extracting the zip file “pgadmin zip”, execute the file pgadmin3.msi and start the installation process.

I NSTALL PG A DMIN (2)

I NSTALL PG A DMIN (3)

I NSTALL PG A DMIN (4) The installation is successfully finished

C ONNECT TO P OSTGRE SQL (1) Open pgAdmin and add a connection to a server

C ONNECT TO P OSTGRE SQL (2) Name for server connection Hosted server: cop5725- postgresql.cs.fiu.edu Database Name: postgres Username: fall15 _”fiu_account” Password: Panther ID

C ONNECT TO P OSTGRE SQL - OFF - CAMPUS (1)

C ONNECT TO P OSTGRE SQL - OFF - CAMPUS (2) Host name FIU Account First Initial + PantherID + Last Initial Ex: h h

C REATE A DATABASE (1) Product_noNameprice Create table CREATE TABLE products ( product_no integer, name text, price numeric ); Constraints: (1)CHECK (2)NOT NULL (3)UNIQUE (4) PRIMARY KEY (5) FOREIGN KEY CREATE TABLE products ( product_no integer, name text, price numeric CHECK (price > 0) ); CREATE TABLE products ( product_no integer, name text, price numeric CONSTRAINT positive_price CHECK (price > 0) ); CHECK Boolean expression For instance CHECK (price>0)

CREATE TABLE products ( product_no integer UNIQUE NOT NULL, name text NOT NULL, price numeric ); C REATE A DATABASE (2) Not null constraint CREATE TABLE products ( product_no integer PRIMARY KEY, name text NOT NULL, price numeric ); Primary key and Foreign key Constraints: (1)CHECK (2)NOT NULL (3)UNIQUE (4) PRIMARY KEY (5) FOREIGN KEY CREATE TABLE orders ( order_id integer PRIMARY KEY, product_no integer REFERENCES products (product_no), quantity integer, );

C REATE A DATABASE (3) Foreign Key CREATE TABLE company_order( Order_id integer PRIMARY KEY, Cid integer, Addr text, … FOREIGN KEY (Cid, Addr) REFERENCES company (Company_id, Address) ); CREATE TABLE company( Company_id integer PRIMARY KEY, Address text );

C REATE A DATABASE (4) CREATE TABLE products ( product_no integer PRIMARY KEY, name text, price numeric ); (1)RESTRICT (2)NO ACTION (default) (3)CASCADE (4)SET NULL (5)SET DEFAULT CREATE TABLE orders( order_id integer PRIMARY KEY, shipping_address text, … ); CREATE TABLE order_items ( product_no integer REFERENCES products ON DELETE RESTRICT, order_id integer REFERENCES orders ON DELETE CASCADE, quantity integer, PRIMARY KEY (product_no, order_id) );

C REATE A DATABASE (5) Insert Data INSERT INTO products VALUES (1,'cheese',5); INSERT INTO products VALUES (1,'cheese',5), (2,’cake’,10) ; INSERT INTO products (product_no, name,price) VALUES (1,'cheese',5);

C REATE A DATABASE (6) Import Data Export Data COPY country TO '/sql/country_data.csv' WITH DELIMITER '|'; COPY country FROM '/usr1/proj/bray/sql/country_data.csv' WITH DELIMITER ',' ;

C REATE A DATABASE (7) ALTER Table Add columns Remove columns Add constraints ALTER TABLE products ADD COLUMN description text; ALTER TABLE products DROP COLUMN description; ALTER TABLE products ADD CONSTRAINT namecheck CHECK (name <> ''); ALTER TABLE products ADD CONSTRAINT some_name UNIQUE (product_no); ALTER TABLE products ADD FOREIGN KEY (product_group_id) REFERENCES product_groups; ALTER TABLE products ALTER COLUMN product_no SET NOT NULL;

C REATE A DATABASE (8) ALTER Table Remove constraints Change column data types Rename columns Rename tables ALTER TABLE products DROP CONSTRAINT some_name ; ALTER TABLE products ALTER COLUMN product_no DROP NOT NULL; ALTER TABLE products ALTER COLUMN price TYPE numeric(10,2); ALTER TABLE products RENAME COLUMN product_no TO product_number; ALTER TABLE products RENAME TO items;

C REATE A DATABASE (9) Update Data UPDATE products SET price = 10 WHERE price = 5; UPDATE products SET price = price * 1.10; UPDATE mytable SET a=5, b=3, c=1 WHERE a>0;

C REATE A DATABASE (10) Delete Data DELETE FROM products WHERE price = 10; DELETE FROM products

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